| Sold | Grade | Monthly Average |
| Dec 2013 | 4.5 | $1.15 |
| Jan 2011 | 4.5 | $1.49 |
| Jan 2022 | 4.0 | $2.00 |
| Dec 2020 | 4.0 | $2.28 |
| Feb 2021 | 3.5 | $2.00 |
| Apr 2019 | 3.5 | $1.62 |
| Dec 2017 | 3.0 | $1.70 |
| Aug 2017 | 3.0 | $1.70 |
| Jun 2017 | 3.0 | $1.70 |
| Nov 2015 | 3.0 | $1.35 |
| Apr 2012 | 3.0 | $1.10 |
| Mar 2012 | 3.0 | $1.10 |
| Apr 2017 | 2.0 | $1.70 |
| Feb 2013 | 2.0 | $1.20 |
| Aug 2012 | 2.0 | $1.10 |
| Oct 2021 | 1.8 | $1.90 |